Through-wall terminal and power equipment

Abstract

The utility model discloses a through-wall terminal and electrical equipment, including wiring base, and internal wiring portion and external wiring portion respectively arranged at the both sides of wiring base, wherein the internal wiring portion includes stud, first nut and second nut, the stud is arranged on the conductor connecting the internal wiring portion and the external wiring portion, the stud includes first screw section and second screw section, and the first screw section and the second screw section are respectively connected with the first screw section and the second screw section. The diameter of the second screw section is smaller than that of the first screw section; the first nut is connected with the first screw section, and a first wiring interface is formed at the joint; and the second nut is connected with the second screw section, and a second wiring interface is formed at the joint. According to the wall-through terminal, a nut on the electric conductor is changed into the double-section stud, so that an additional wiring interface is provided, the sampling wiring requirement is met, and the functionality is higher; and the internal wiring part is relatively high in function integration degree and relatively small in occupied space.

Description

Technical Field

[0001] The utility model relates to the technical field of power equipment connectors, in particular to a wall-through terminal and a power equipment. Background Art

[0002] A wiring terminal is a fitting product used to achieve electrical connection. Industrially, it is classified into the category of connectors. In power facilities, the wiring terminals for passing through walls are mostly used to connect the power devices on both the inside and outside sides to achieve conductive connection on both sides.

[0003] Currently, the internal wiring of the power wall-through terminal of the inverter only has a power interface, and its structure is as shown in the appendix. Figure 3 By riveting nuts inside the terminal and then using screws to lock the power lines, a power interface is formed. Its disadvantages are: lacking a sampling interface, not supporting wiring requirements, and being unable to obtain the change information of the inverter in a timely and accurate manner, with insufficient functionality.

[0004] Therefore, the inventor proposes a new type of wall-through terminal to solve the above problems. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a wall-through terminal. By changing the nut riveted on the internal conductor into a stud and growing a sub-column on the stud, an additional wiring interface is provided to meet the sampling wiring requirements.

[0006] The purpose of the utility model is achieved by adopting the following technical solutions:

[0007] A wall-through terminal includes a wiring base and an internal wiring part and an external wiring part disposed on both sides thereof. Among them, the internal wiring part includes:

[0008] A stud is disposed on the conductor connecting the internal and external wiring parts. The stud includes a first screw section and a second screw section, and the diameter of the second screw section is smaller than that of the first screw section.

[0009] A first nut is connected to the first screw section and forms a first wiring interface at the connection.

[0010] A second nut is connected to the second screw section and forms a second wiring interface at the connection.

[0011] In some embodiments, the first wiring interface is a power wiring interface.

[0012] In some embodiments, the second wiring interface is a signal sampling wiring interface; wherein, signal sampling includes but is not limited to temperature sampling and voltage sampling.

[0013] In some embodiments, the second wiring interface is a filtering wiring interface.

[0014] In some embodiments, a first gasket that mates with the first nut is sleeved on the first screw section.

[0015] In some embodiments, a second gasket that mates with the second nut is sleeved on the second screw section.

[0016] In some embodiments, a conductive layer is provided on the surface of the stud, and the conductivity coefficient of the conductive layer is greater than that of the stud.

[0017] In some embodiments, there are multiple inner wiring parts, and a partition is provided between adjacent inner wiring parts.

[0018] In some embodiments, a plurality of connection holes are provided at the edge of the wiring base.

[0019] A power device includes the wall-penetrating terminal described above.

[0020] Compared with the prior art, the beneficial effects of the present utility model at least include:

[0021] 1. By changing the nut on the conductor to a double-section stud, an additional wiring interface is provided to meet the sampling wiring requirements, and the functionality is stronger;

[0022] 2. The inner wiring part has a high degree of functional integration and occupies a small space. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a schematic structural diagram of the wall-penetrating terminal of the present utility model.

[0024] Figure 2 is a schematic structural diagram of the inner wiring part of the present utility model.

[0025] Figure 3 is a schematic diagram of a power wall-penetrating terminal in the prior art.

[0026] In the figure: 1. Wiring base; 11. Connection hole;

[0027] 2. Inner wiring part; 21. Stud; 211. First screw section; 212. Second screw section; 22. First nut; 23. Second nut; 24. First wiring interface; 25. Second wiring interface; 26. First gasket; 27. Second gasket;

[0028] 3. Outer wiring part;

[0029] 4. Partition. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0030] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, the exemplary embodiments can be implemented in various forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this utility model will be more complete and comprehensive, and the concept of the exemplary embodiments will be fully conveyed to those skilled in the art. Like reference numerals in the figures denote like or similar structures, and thus their repeated description will be omitted.

[0031] In the present utility model, the words describing positions and directions are illustrated by taking the accompanying drawings as examples, but can also be changed as needed, and all such changes are included within the protection scope of the present utility model.

[0032] Referring to Figure 1 as shown, the present utility model discloses a through-wall terminal, which includes a wiring base 1 and inner wiring parts 2 and outer wiring parts 3 disposed on both sides thereof. Among them, the inner and outer wiring parts 2 and 3 can be connected through a conductor (not shown), for example, a copper busbar is used for connection, so as to realize the power conduction on both sides inside and outside the through-wall terminal.

[0033] Referring to Figure 2 as shown, Figure 2 is a schematic structural view of the inner wiring part 2 of the through-wall terminal. In the present application, the inner wiring part 2 includes a stud 21, a first nut 22, and a second nut 23.

[0034] Among them, the stud 21 is arranged on the conductor, and the two can be fixed by riveting. The stud 21 includes a first screw section 211 and a second screw section 212 connected integrally, and the diameter of the second screw section 212 is smaller than that of the first screw section 211, so as to facilitate the installation of the first and second nuts 22 and 23. Among the above two nuts, the first nut 22 is a large nut, which matches the first screw section 211 of the stud 21, and the second nut 23 is a small nut, which matches the second screw section 212 of the stud 21.

[0035] When wiring, the first nut 22 connects to the first screw section 211 and forms a first wiring interface 24 at the connection. In the present application, the first wiring interface 24 is a power wiring interface for connecting a power line. The second nut 23 then connects to the second screw section 212 and forms a second wiring interface 25 at the connection. In the present application, the second wiring interface 25 can be a signal sampling wiring interface for connecting a signal sampling line, where signal sampling includes but is not limited to temperature sampling and voltage sampling. Or, the second wiring interface 25 can be a filtering wiring interface for connecting a filtering line.

[0036] Compared with the through-wall terminal in the prior art, the through-wall terminal of the present application changes the nut riveted on the internal conductor into a double-section stud 21, thereby providing an additional wiring interface to meet the sampling wiring requirements and having stronger functionality. Moreover, the additional wiring interface occupies less space and the internal wiring part 2 has a higher function integration degree.

[0037] Still Figure 2 As shown, in some embodiments, a first gasket 26 that cooperates with the first nut 22 is sleeved on the first screw section 211. The first gasket 26 can increase friction, improve the connection stability between the first nut 22 and the first screw section 211, prevent the first nut 22 from loosening, and ensure the wiring reliability at the first wiring interface 24.

[0038] Preferably, the first gasket 26 is a metal gasket, which enables the power line to also conduct through the stud 21 via the first gasket 26, further improving the conduction rate and ensuring the stability and effectiveness of the conductivity at the wiring location.

[0039] Similarly, in some embodiments, a second gasket 27 that cooperates with the second nut 23 is sleeved on the second screw section 212. The second gasket 27 can increase friction, improve the connection stability between the second nut 23 and the second screw section 212, prevent the second nut 23 from loosening, and ensure the wiring reliability at the second wiring interface 25.

[0040] Preferably, the second gasket 27 is a metal gasket, which enables the signal sampling line or the filtering line to also conduct through the stud 21 via the second gasket 27, further improving the conduction rate and ensuring the stability and effectiveness of the conductivity at the wiring location.

[0041] In some embodiments, a conductive layer is provided on the surface of the stud 21, and the conductivity coefficient of the conductive layer is greater than that of the stud 21, thereby reducing the resistance and avoiding potential safety hazards caused by overheating at the first and second wiring interfaces 25 of the internal wiring part 2. In the present application, the conductive layer is preferably a silver layer or a copper layer.

[0042] In some embodiments, there are multiple internal wiring parts 2, and a partition 4 is provided between adjacent internal wiring parts 2 to isolate the current in the wiring cables and avoid current crosstalk, thereby improving the safety performance and stability performance of the power equipment.

[0043] See Figure 1 As shown, in some embodiments, several connection holes 11 are provided on the edge of the wiring base 1, and connectors such as screws and pins can be installed in the connection holes 11 to fix the wiring base 1 to the target power equipment.

[0044] The present utility model also discloses a power equipment, which can be a power conversion equipment such as an inverter. This equipment includes the above-mentioned through-wall terminal and has the ability of sampling wiring while meeting the power wiring requirements.

[0045] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Without departing from the principles and spirit of the present invention, those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention, and all such changes should fall within the protection scope of the claims of the present invention.

Claims

1. A wall-piercing terminal, comprising a wiring base (1) and inner wiring parts (2) and outer wiring parts (3) separately arranged on both sides thereof, characterized in that, The internal wiring part (2) includes: A stud (21) is provided on the conductor connecting the internal and external wiring parts (3). The stud (21) includes a first thread section (211) and a second thread section (212), wherein the diameter of the second thread section (212) is smaller than that of the first thread section (211); A first nut (22) is connected to the first thread section (211) and forms a first wiring interface (24) at the connection; A second nut (23) is connected to the second thread section (212) and forms a second wiring interface (25) at the connection.

2. The through-wall terminal according to claim 1, characterized in that, The first wiring interface (24) is a power wiring interface.

3. The wall-penetrating terminal according to claim 1, characterized in that The second wiring interface (25) is a signal sampling wiring interface; wherein, signal sampling includes at least temperature sampling or voltage sampling.

4. The through-wall terminal according to claim 1, wherein The second wiring interface (25) is a filtering wiring interface.

5. The wall-piercing terminal according to claim 1, wherein A first gasket (26) that cooperates with the first nut (22) is sleeved on the first thread section (211).

6. The through-wall terminal according to claim 1, wherein, A second gasket (27) that cooperates with the second nut (23) is sleeved on the second thread section (212).

7. The through-wall terminal according to claim 1, characterized in that, A conductive layer is provided on the surface of the stud (21), and the conductivity coefficient of the conductive layer is greater than that of the stud (21).

8. The through-wall terminal according to claim 1, characterized in that, There are multiple internal wiring parts (2), and a partition (4) is provided between adjacent internal wiring parts (2).

9. The through-wall terminal according to claim 1, characterized in that, A plurality of connection holes (11) are provided on the edge of the wiring base (1).

10. A power device, characterized in that, It includes the wall-penetrating terminal according to any one of claims 1-9.

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